"Tripathi was arrested red handed at Jeevan Anmol hospital in (east Delhi's) Mayur Vihar Phase-I when he approached the complainant doctor, Mahesh Kumar, around 9.45 p.m. Friday to take the delivery of Rs.1.5 lakh extortion money in lieu of a pen drive of a video film made by them," said a police officer.

The doctor, who runs a clinic in east Delhi's Mandawali, was threatened and an attempt was made to extort money was made by the accused who had made a video of his sessions with patients, said the officer.

Tiwari, resident of Jabalpur in Madhya Pradesh, works as a freelance journalist and is the main conspirator, the officer said.

Mishra works as an information technology manager in India TV news channel while Tripathi works as a system administrator in the channel.